package com.tourscool.springboot.starter.inquiry.utils;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

/**
 * @author Cedric
 * @date 2020/11/02 18:30
 * @description 类功能描述
 */
public class EncryptUtils {

    public static String md5String(String input) {
        MessageDigest md5;
        try {
            md5 = MessageDigest.getInstance("MD5");
        } catch (NoSuchAlgorithmException e) {
            return "check jdk";
        } catch (Exception e) {
            e.printStackTrace();
            return "";
        }
        char[] charArray = input.toCharArray();
        byte[] byteArray = new byte[charArray.length];

        for (int i = 0; i < charArray.length; i++)
            byteArray[i] = (byte) charArray[i];
        byte[] md5Bytes = md5.digest(byteArray);
        StringBuilder hexValue = new StringBuilder();
        for (int i = 0; i < md5Bytes.length; i++) {
            int val = ((int) md5Bytes[i]) & 0xff;
            if (val < 16)
                hexValue.append("0");
            hexValue.append(Integer.toHexString(val));
        }
        return hexValue.toString();
    }
}
